Calculating machine



19, 1930. E. KASSNER 1,773,145

CALCULATING MACHINE Filed Jan. 8, 1927 1 Sheets-Sheet l Aug. 19, 1930.

1;. KASSNER CALCULATING MACHINE Filed Jan. 8, 1927 7 Sheets-Sheet 2 INVATTORNEY Aug. 19, 1930. E. KASSNER 1,773,145

CALCULATING MACHINE Filed Jan. 8, 1927 v 7 Sheets-Sheet ATTORNEY Aug.19, 1930. KASSNER 1,773,145

CALCULATING MACHINE Filed Jan. 8, 1927 7 Sheets-Sheet 4 INVENTORATTORNEY Aug 19, 1930,. E. KASSNER 1,773,145

CALCULATING MACHINE Filed Jan. 8, 1927 7 Sheets-Sheet 5 AAI ' Aug. 19,1930. ss 1,773,145

CALCULATING MACHINE 7 Sheets-Sheet- 6 Filed Jan. 8, 1927 INVENTOR ORNEYmy copending application, Serial Patented Aug. 19, 1930 UNITED STATESPATENT OFFICE CALCULATING MACHINE Application filed January 8, 1827,Serial No. 159,771, and in Germany March 8, 1926.

Tiis invention relates in general to calculating machines and moreparticularly to automatic devices for printing distinguishing marks thatindicate which of its various modes of operation the machine hasperformed or is performing, and feed devices for shifting the recordstrip to different eX- tents according to the spacing desired betweenthe printed items or lines.

The automatic device described herein for printing distinguishing marks,and feeding the record strip is particularly adapted to the combinedduplex adding machine and cash register which is the subject matter ofNumber 159,770.

In more adding machines, and in a particular kind of cash register,arrangements are known by which a distinguishing mark,

that indicates the mode of operation for which the machine is set, isprinted together with the calculation figures on the record strip. But111 machines of the type contemplated herein, i. e. in combined duplex 5adding machines and cash registers, diiiiculties of a peculiar kind haveto be overcome to obtain a proper relation between the selection of thedistinguishing mark of the mode of operation and the extent of therecord strip feed motion according as the strip is shifted by one, a fewor a large number of lines. The manner in which these diiiiculties aresurmounted by the present invention is intimately related with the twomulti-position switches by which,accordingto said copending application,the combination devices of the machines are set foreii ecting all thedifferent modes of operation of the same. Hence a feature of the presentinvention consists in means by which the throwing of said twomuiti-position switches causes the proper feed motion of the recordstrip, and also the setting of the corresponding distinguishing mark andthe printing of the same on the strip, to be effected when the maindriving shaft of the machine is re volved.

In the following table in the left hand column under I to VIII thevarious combinations of switch positions areenumerated exanddistinguishing mark are stated.

Switch positions (U and Z are switches) I U in position U Z in positionZ II U in position U Z in position Z III U in position U Z in position ZI I U in position U Z in position Z V U in position U Z in position Z VIU in position U Z in position Z VII U in position U Z in position Z VIIIU in position U Z in position Z Modes of operation Single-line spacingon the record strip.

N o printing of distinguishing marks. Six-line spacing on the recordstrip. T=Printing of distinguishing marks. Six-line spacing on therecord strip. Z Printing of distinguishing marks. Three-line spacing onthe record strip. L=Printing of distinguishing marks. Six-line spacingof the record strip.

Y=Printing of distlnguishing marks.

Single-line spacing on record strip.

I=Printing of distlnguishing marks at each item.

Six-line spacing on record strip.

K=Printing of dis- An embodiment of the invention is illus trated in thedrawings, in which E 1 is a side view and Fi 2 is a plan view of thedevice for .rests upon the shaft 82 as shown in Fig. 1.

printing distin ishing marks and showing only so much 0 a device forcutting the record strip as is necessary for illustrating the invention.

Fig. 3 shows the links between the switches and the device for releasingthe printing hammer to allow it to effect a printing operation.

Fig. 4 shows the record strip feed mechanism and the means by which thismechanism is caused to shift the record strip forward to differentextents. This figure also shows the shaft and its associated parts fortensioning the springs of the printing mechanism.

Fig. 5 is a fragmentary side view showing on a still larger scale thedevice for printing distinguishing marks in its normal position.

Fig. 6 shows the motion transmitting members for rotating into itsprinting position the type wheel that prints the distinguishing marks.

Fig. 7 is a plan view thereof.

Fig. 8 is a fragmentary side view illustrating two stepped levers bymeans of which the movable member which rotates the type wheel into itsprinting position is set or by which the extent of its movement isdetermined.

Fig. 9 is a fragmentary side view illustrating a device for coupling aspring tensioning member to a spring tensioning shaft for the urpose ofpreparing the distinguishing mar printing device for action.

Fig. 10 is a fragmentary top plan view of the structure shown in Figs. 7and 8.

Fig. 11 is a fragmentary side view showing separately the mechanismillustrated in Fig. 4 for eflecting different extents of feed motion ofthe record strip.

Fig. 12 is a fragmentary side view showing the driving deviceillustrated in Fig. 4 for v the record strip feeding mechanism.

The device for printing distinguishing marks are en raved on theperiphery of a small type-w eel 5 (Figs. 1 and 2). This typewheel 5,which is shown more distinctly in Fi 6 and 7, is loosely mounted on ashaft 4 1ournallcd in a frame 1, 1. The frame 1, 1 is arranged to berocked on a shaft 2. In "as normal position it is swung down by its ownweight so that its right hand end As set forth in the above table,different distinguishing marks are to be printed in acance with thedifferent positions into which the two switches U and Z (Fig. 3)

.are thrown. This is accomplished, as will be more fully describedlater, by moving the extension 8 shown in Figs. 6 and 7 of a secondframe 8, 8 to different extents in its longitudinal direction throughthe different set- I tings or positionings of the two switches U and Z.These different movements of the movable member or frame 8, 8,determined by the switches U and Z, are transmitted to the type-wheel inthe following manner:

As shown in Figs. 6 and 7 the left end of the extension 8 of the frame8, 8 is connected by a pivot 7 to a short rocker arm 9 that is pivotallyconnected by a pivot 9" to the frame 1, 1*. Also pivotally connected tothe frame 1, 1 by means of a pivot or shaft 3 is a lever plate 6 that isconnected by the pivot 6 and a link 7 with a pivot 7. The four pivots 3,9 and 7 6 form a parallelogram pivot system whose parallel pairs ofpivots 3, 6 and 9 7 are deflected through equal angles when theextention 8 of the frame 8, 8 is moved longitudinally. This movement istransferred by the toothed sector 6 rigidly connected to the lever plate6, to the toothed wheel 5 rigid with the type-wheel 5. By this means thetype of the type-wheel that corresponds to the mode of operation to beindicated on the record strip is turned to the highest position of thewheel, i. e. into the position for printing. A rigid connection betweenthe toothed sector 6 and the lever plate 6 is effected by means of aU-shaped extension of the lever plate that straddles the side or check 1of the type-wheel carrier frame in the manner shown most clearly in Fig.7.

The manner in which the two switches U and Z give rise to differentextents of movement of the frame 8, 8 according to the positions inwhich they are set relatively to each other will now be described.

The frame 8, 8 whose right fork-shaped end is adapted to slide on theshaft 10 is acted upon by a spring 11 (Figs. 1 and 2) situated betweenthe limbs 8 and 8 of the frame which spring tends to pull the lattertowards the right. The left end of the spring 11 is fixed to theconnecting member 8 (Figs. 2 and 7) between the limbs 8, 8*. Normallythe frame 8, 8 is prevented from moving by a stop or striking memberattached to the frame and consisting of an eccentric screw 13' thatabuts upon an arm of a bell crank lever 12, 12 (Fig. 1). At eachrevolution of the main driving shaft of the machine this bell cranklever is deflected to release the frame it cam disk 39 into whose camgroove 39'" the roll 38 of a rocker arm 38 extends, which arm is pivotedon the shaft 37. The movement thus imparted by the cam to the link 36 istransmitted to the arm 12 of the aforesaid bell crank lever so that itsvertical arm 12 is deflected towards the right to liberate the frame 8,8. As will be presently shown the frame or movable member 8, 8 can nowtravel into any predetermined position. During the latter part of therevolution of the main driving shaft, which executes only a singlerevolution for each operation or cycle of the machine, the bell cranklever 12 12 is returned by the aforedescribed interconnecting gear intoits normal position in which it looks the frame 8, 8*.

)Vhen the arm 12 is deflected towards the rightthe frame 8, 8 can bepulled by the spring 11 towards the right into any predeterminedposition. These posit-ions are determined by means of two stepped levers15 and 1G pivoted on the shaft 10 (Figs. 8 to 10), whicn levers aremoved by means of intern'iediatc gear or links connected to the twoswitches Z and U as will be hereinafter described. The stepped lever 15has four steps 15, 15, 15 and 15% while the stepped lever 16 has twosteps 16 and 16 Arranged on. the frame 8 8 to cooperate with the saidsteps is a striking pin or roll 12 which occupies the position shown inFigs. 8 and 10 when the frame 8, 8 is in its normal position. Accordingas one or the other of the said steps is turned into the path of thestriking pin 12 the frame 8, 8 pulled to the right by the spring 11 willbe stopped in its travel towards the right sooner or later by thestriking of the pin 12 against the said step so that a differentdistinguishing ixark f the type-wheel is always presented for printingto the r cord strip. The manner in which the different steps of the twostepped levers cooperate in order to prevent the printing of adistinguishing mark or to cause a predetermined mark to be printedaccording to the mode of operation for which the machine is set asrepresented in the above table will be described hereinafter.

Device for ten-950115929 and cletensioning the springs that actuate theprinting hammars The printing of the numerals and numbers is effected bya printing hammer 40 (Figs. 2 and 3) while the printing of thedistinguishing mark is effected. by the typewheel 5 itself. the frame 1,1 being flung upwardly with the type-Wheel 5 for this purpose. Thesprings 41, 42 for operating the printing hammer 40 (Fig. 2), and thespring 43 that actuates the type-wheel 5 ha s their right ends connectedto arms which are fixed on the shaft 10. The spring 41 is connected tothe arm 60 9) that is fixed on the shaft 10, and the spring 42 isconnected to a bell crank lever 52 52 (Figs. 9 and 10) also fixed on theshaft 10. But the spring 43 that actuates the rocker frame of the typewheel 5 is connected to a three-armed spider 51, 51, 51 (Figs. 9 and 10)that turns loosely on the shaft 10, but can be coupled to the bell cranklever 52, 52 by means of a couplin member in the form of a hook 50. Thishook is pivotally connected to the top arm 51 of the said three-armedspider, and a draught spring 52 connected to a pin of the hook 50 and tothe arm 51 of the spider tends to pull the hook 50 into engagement withthe coupling pin 52 of the bell crank lever 52, 52. The shaft 10 iscaused to execute a part of a revolution whenever the main driving shaft35 is revolved, the said motion of the shaft 10 being effected as shownin Figs. 3 and- 4 by means of a cam fixed on the main driving shaft andcooperating with the roll 55 of a swinging member 55 to rock the shaft10 by means of a pull bar 56, bell crank lever 57, 5%, pull bar 58 andan arm 59 lixed on the shaft 10. By this oscillation of the shaft 10 thesprings 41, 42 are tensioned to actuate the printing hammer 40 and printthe numerals and numbers and thereupon the springs 41, 42 aredetensioned due to the roll 55 slipping off the cam 54 of the maindriving shaft. While the tensioning and d-etensioning device foroperating the printing hammer 40 acts in every operation of the machine,the spring 43 for effecting the printing action of the distinguishingmark type-wheel is only tensioned whenever the coupling hook 50 couplesthe bell crank lever 52, 52 with the spider 51, 51 51".

This coupling operation of the hook 50 is 5 made dependent on theposition of the switch U, which affects the hooked rod 49 (Figs. 9 and10) whose hook 49 abuts upon the pin 50 of the coupling hook 50. As

shown in the above table, a distinguishing Fl mark must only be printedwhen the switch U is thrown into its position U or U but not when it isin its position U and irrespective of the position of the other switchZ.

It follows that the hooked rod 49 must hold the coupling hook 50in itsdisengaging or uncoupling position when-the switch U is in its oositionU so that even though the bell crank lever 52*, 52 is deflected, nodeflection or turning movement is imparted to the three-armed spider.But when the switch U is thrown into one ofits positions U or U thehooked rod 49 releases the coupling hook 50, so that it engages with thecoupling pin 52 and causes the three-armed spider,

to which the actuating spring 43 is attached, to participate in therotary motion of the shaft 10 for the purpose of tensioning the spring43 to cause the latter to effect the printing of a distinguishing n'tark. manner in which the hooked rod 49 is set by the switch U will bedescribed hereinafter.

The manner in which the printing hammer and the type-wheel rocker arereleased for printing operations will now be described:

The release of the printing hammer 40 (Figs. 1, 2 and 3), which turnsloosely on the shaft 2, is effected positively by a rotary The movementof the carrier shaft 69, on which the type carriers 7 (Fig. 3) areloosely pivoted. The type carriers bear types at their whose strikingsurface 73 bears against a pin 74 fixed on the adjacent t pe carrier 70.Whenever a numeral key in t 1e keyboard is depressed, the rotation ofthe main driving shaft causes the type carrier 7 O to move through acertain angle, and the feeler arm 73 is then made to follow the pin 74by the action of a spring 76. This results in the push bar 77 (Fig. 3)being pulled towards the right by the link 75, so that the upper end ofthe bar 77 contacts with the periphery of the arcuate push lever 72. Bythis means the push bar is brought into the path of the striklng member7 2, so that when the carrier shaft 69 is turned throu h a partialrevolution by motion transmitte to it from the main shaft 35, the pushbar 77 is pressed downwards. This downward motion is transmitted throughthe bell crank lever 78, 7 8*, link 80, arm 81 fixed to the shaft 82, tothe arresting arms 82 and 64 (Figs. 2 and 3). The first arresting arm82" belongs to the printing hammer and its arresting surface 82', whichlocked the arm 40 of the printing hammer, now releases the same (Fig.3). The second arresting arm 64 (Fig. 1) belongs to the rocker supportor frame, 1, 1 of the typewheel 5, and its arresting surface 64*, whichpreviously locked the rocker frame, now releases the same. By theoscillation or partial revolution imparted to the shaft 10 at eachoperation of the machine as described above, the springs 41 and 42 aretensioned before the printing hammer is released. Therefore as soon asthis release is effected the springs 41, 42 attached through draughtrods 40", to an arm 40 of the rinting hammer (Figs. 2 and 3) throw thelatter upward, causing it to strikeagainst the type-carriers 70, oragainst the'record strip and ink ribbon, whereby the desired impressionon the record strip is made. When the springs are detensioned during thesecond half of the cycle of operations, performed during the revolutionof the main driving shaft of the machine, the printing hammer drops byits own weight and is then locked in its normal position by thearresting arm 82.

A similar motion to that performed by the printing hammer is alsoexecuted by the rocker support 1, 1 that carries the type-wheel 5. Asshown in Figs. 1 and 5 the spring 43 is attached to the said frame bymeans of a draught rod 62 and an arm 62 that rotates on the shaft 2 andtends to lift the rocker support or frame 1, 1". Therefore as soon asthe arresting arm 64 (Fig. 1) releases the end of the rocker support,this latter is flung upwards by the action of the spring 43, causing thetype of the type-wheel 5, which has been set into its printing position,to strike against the record strip supported by the type carrier 70. Bythis means the distinguishing mark is printed on the record strip. Whenthe spring 43 is detensioned, the rocker support falls by its own weightinto its normal position, where it is locked by the arresting arm 64 asdescribed above. The spring 43 is only tensioned whenever the switch Uis thrown out of its normal position U and thereby causes the couplinghook (Fig. 9) to couple the spring tensioning member 51, 51*, 51 to thespring tensioning shaft 10.

Efi'ect of the switch positions on the printing of the distinguishingmark The effect of the different positions of the two switches U and Zon the printing of the distinguishing mark and on the selection of thedistinguishing mark required in each case will now be described:

hlode of operation I .In the mode of operation I according to the abovetable, in which the switches occupy their positions U and Z nodistinguishing mark is printed on the record strip. The manner in whichthis comes about has already been described above. When the switch U isin its initial position U the coupling hook 50 is held in itsnon-coupling position by the hooked rod 49 (Fig. 9). Consequently eventhough the spring tensioning shaft 10 is turned, the spring 43 whichacts on the rocker support 1, 1 of the type-wheel 5 remains untensioncd,so that the rocker support with its type-wheel remains in its normalposition. As regards the switch Z, this is ineffective in its positionZ", so that it has no effect on the mechanism or combination devices ofthe machine.

Mode of operation Il.In this mode of operation the switches are in theirpositions U and Z as shown in the above table. By throwing the switch Ufrom its initial position U into its position U the gear shown in Fig. 3is moved. By this motion the curved arm 23 fixed to the pivot 22 of thelever U is swung round and by its pin 23" that engages with the forkedarm 26 fixed to the shaft 24, the forked arm 25 fixed on the shaft 24 isalso swung. This rocking of the curved arm 23 is utilized to swing arocker frame 21 pivoted on the pivot 21 through the angle 0: indicatedin Fig. 3. This is effected by means of apin (not shown) that projectsfrom the rocker frame 21 into the slot of the forked lever 25. Only afragment of the rocker frame 21 is shown in Fig. 3, so as to disclosethe gear or parts behind the same. The described swinging motion of theframe 21 is transferred by a downwardly extending arm 21 and a link 44to anarm 4L6 pivoted on a shaft 15. This motion of the arm {i6 istransferred by an arm 46, the link l7, and the bell crank lever i8, 48to the aforesaid hooked rod ll), which thus releases the coupling hookS) and 10) so that the latter engages with the coupling pin 52.Consequently when the spring-tensioning shaft 10 is now turned by a revohe main shaft not only the springs 4-1 and 41s are teneioned, but thethree-armed spider 51, 51. 51 is also car ried around by the couplinghook 591 to tension the spring 4?, so that the latter throws the rockersupport 1, 1 with its type-wheel 5 upwards for the purposeof printingthe distinguishing mark.

The manner in which the various distinguishing marks are selected forprinting in the aforedescribed position of the gear will now beexplained: As already describes. above, the selecting operation consistsin the movable member of frame 8, 8 having its striking pin 1.2 8)pulled towards the right against one of the steps of the two steppedlevers 14, 16 prior to each printing operation. 8 shows the'position ofthe stepped levers when neither of them has been turned from its normalposition by the switches U and Z, these positions of the stepped leverscorresponding to the modes of operation I and H of the machine. In the eof operation I, no dis nguishing mark c'd because no tensioning of thespring a3 is effected as described. in the mode of opei aticn ll newunder consideration. the strik- 12 as seen in 8 is moved to the 0 intocor-tact with the step 16, whereby the type- *heel 5 is rotated accordy. The travel of the pin 12 from its normal position to the step 16causes the type-wheel to execute the l: est possible rotation providedfor in the illi'istrated embodiment of the in vention. This larg stpossible rotation of the type-wheel, which has six distinguishing marks,results in the last type, viz. the disti uishing mark being presentedfor to the record strip.

1h 0 of operation [.U.To set the combination devices for effecting themode of op oration T 21, the switches are thrown into position U 2111CZ". l Vhen the switch U is thrown into position U motion is transmittedto the hooked rod 49 while the switch U passes rom pos n U to U in themanner set fo in cribing the mode of operation H with re erence to 8.Consequently,

hook 50, Fig. 8 effects a couion,andthe spring 48 is tensioned en themachine executes the operation for curved arm 23, 3 disengages itselffrom the forked lever 26,- becau-se the right hand limb or prong of thefork is shorter than the other prong and allows the pin 23 to swing overits top end. Therefore the rocker frame 21 remains stationary after ithas swung through the angle or and the hooked rod l9 also has no furthermotion imparted to it and the coupling hook 50 remains in its couplinposition. To secure the parts in this position, spring arresting lever21' is arranged to cooperate with the roll. 27 of an arm fixed on theshaft 24. When the switch U is thrown intoposition U or U the roll 27 isheld in a recess in the arresting lever 27? as shown in Fig. 3 and thusmaintains the shaft 2 1- in the position into which it has been turned.v

During the passing of the switch from position U to U a pin 28 fixed toa short downwardly extending arm 23 of the curved arm 23 enters the slotof a forked lever 28,

the right hand prong of the fork being made shorter than the other prongfor this purpose. The rocking of the switch from U to U is thus causedto eifect a deflection of the bell crank lever 28, 3O fixed to the shaft29, so that the arm 30 of the bell crank lever swings upwards. Theupward motion is transmitted through the pullbar 31, the bell cranklever and the link 3 1 to the stepped lever 16 (Fig. 8), so that thestep 16" instead of the step l6?- is moved into the path of the strikingpin 12. Consequently, when the machine is now operated by the maindriving shaft the movable member of frame 8, 8 is drawn by the spring 11towards the right until its striking pin 12 reaches the step 16 Thismotion of the frame 8, 8, which is transmitted to the type-wheel 5,causes the latter to be rotated by four types, so that a differentdistinguishing mark than in the mode of operation 11 is printed, viz.the distinguishing mark Z.

Mode of operation IV.In this mode of operation the switch Uis throwninto position U and the switch Z into position Z Since the switch Uoccupies the position U the coupling hook 5O 9) effects a con plingoperation and the stepped lever 16is in its initial position shown inFig. 8. By the throwing of the switch Z into its position Z the steppedlever 15 is turned'as will be presently described, so that its step 15(Fig. 8) is placed in the path of the striking pin 12. As the step 15 ishigher than the step 16 it projects beyond the latter so that, when themachine executes the cycle of operations for which it isset, thestriking pin 12 is stopped by the stepv 15. This travel of the frame 8,8 correspondsto a rotation of the typewheel by three types, so that thedis ting'uishing mark L is printed on the record strip. y

The manner in which the motion of the switch Z is transmitted to thesteplever 15 will now be described. By throwing the switch Zfrom itsineffective initial the path of the striking to turn the toothed sectorlever 18, 18". The

arm 18 fixed to the sector 18 transmits its motion by means of thedownward extending connecting rod 17 to the stepped lever 15 (Fig. 8),whereby the latter is set accordmgy.

ode of operation V.-In this mode of operation the two switches areplaced in positions U and Z. As already explained in connection with themode of operation III, in the position U of the switch U the couplinghook 50 effects a coupling operation and the step 16 (Fig. 8) is rotatedinto the path of the striking pin 12. The throwing of the switch Z intothe position Z results in the step 15 of the stepped lever 15 beingturned into the path of the striking pin by means of themotion-transmitting members described in connection with the mode ofoperation IV. The step 15 projects beyond the step 16 so that the formerdetermines the travel of the frame 8, 8". The height of the step 15 issuch that it contacts with the strikin pin 12 before this in is moved,i. e. while t e frame 8, 8 is sti l in its initial position.Consequently, no rotation of the type-wheel 5 takes place when themachine is operated, so that the type 5 is printed, this type beinguppermost on the type-wheel in the normal position of the latter. Bythis means the distinguishing mark Y is printed on the record strip.

M ode of operation VI .For this mode of operation the switches arethrown into'position U and Z'. In the switch position U the couplinghook 50 effects its coupling operation and the stepped lever 16 remainsin its normal or initial position (Fig. 8). The throwingof the switch Zinto position Z results in the stepped lever 15 being turned into aposition in which its step 15 extends out beyond the step 16 and lies inthe path of the striking pin 12. When the machine is now operated thetype-wheel is rotated by one type, and the distinguishing mark I isprinted.

Mode of operation VI I .For this mode of operation the switches arethrown into the position U and Z. The throwing of the switch U into itsposition U results in the coupling hook 50 effecting its coupling oper-'ation, and in the step16 being turned into pin 12. By the throwing ofthe switch Z into its position Z the toothed sector 19 (Fig. 3) isturned counterclockwise, and hence the stepped lever. 15 (Fig. 8) isturned clockwise so that its Ste 15 is rotated towards the striking pin12." e height of the step 15 is such that its lower slanting edge pushesthe striking pin 12 backwards or towards the left, and this motion ofthe frame or movable member 8,

8 imparts a small counter-clockwise motion to the type-wheel to theextent of half the pitch of the types, so that the small type 5 adjacentthe first full type is set into its printing position. By this means thedistinguishing mark A is printed.

M ode of operation VIII .'For this mode of operation the switches arethrown into positions U and Z. In the switch position U no couplingoperation is effected by the coupling hook 50 (Fig. 9) so that nodistinguisliing mark is printed. Therefore the throwing of the switch Zinto position Z has no eflect on the printing of the distinguishingmark.

The effect on the printing of the distinguishing marks of all the switchpositions utilized in setting the machine for operation has now beendescribed. It will now be explained how the type-wheel is held fast inthe frame or rocker support 1, 1" and secured against rotation from itsset position in the act of printing a distinguishing mark.

An inspection of Fig. 6 will show that the locking of the type-wheel inits set position is necessary because, when the rocker support 1, 1 isthrown upward, the movable member or frame 8, 8 participates in thismotion and, by its inertia, tends to displace the link parallelogramrepresented by the pivots, 3, 6" and 9 7. This would cause a rotarydisplacement of the type-wheel, which must be avoided to secure theproper printing of the distinguishing mark. To avoid such displacementsthe following arrangement is provided: I

As already described above the spring 43 acts on the pull bar 62 (Fig.5), which is connected by a pivot 62 to a bell crank lever 62, 62 forthe purpose of raising the typewheel rocker support 1, 1. When the pullbar 62 is pulled to the right by the spring 43 the bell crank lever 62,62 at first moves by itself through a small angle until its horizontalarm 62 contacts with the curved abutment 63. (This abutment 63, which islocated between the two cheeks 1 and 1 of the rocker type-wheel support,is shown clearly in Figs. 5 and 7.) It follows that the pivot 62 firstexecutes a short ineffective movement towards the right before therocker support 1, 1 is lifted. This short ineffective movement istransmitted by means of a link 65 to a bell crank lever 66, 66 that actson a holding lever 68 by means of a link 67. The holding lever 68 ispivotally connected to the lower end of the aforesaid curved abutment 63and therefore also to the rocker support 1, 1". When the holding lever68 is lifted in the manner described, the roll 68' attached to its freeend enters into one of the recesses 5 of the type-wheel and thus looksit in the position in which it has been set for printing. The pitch ofthe recesses 5 corresponds to that of the types. When the rocker support1, 1 is flung upward after llO the described initial motion of the bellcrank lever (32, 62 and the resultant locking operation of the roll 68,the type-wheel is locked in its position relative to the rocker support1, 1

and therefore cannot be displaced by the Record-strip feed-mechanism Theforward travel or feed motion of the record strip 115 is effected by twofeed rolls 105 and 107 pressed against each other as shown in Fig.12,the'roll 105 being driven 3 from the main driving shaft "hrough themedium of toothed wheels. -ied on the main driving shaft 35, 1, 1s aratchet and toothed wheel having t eth on a part of its circun'iferenceonly. lifter the shaft 35 has executed one half of a revolution theteeth of the wheel 53 engage with a toothed wheel 111 that transmitstheir rotary motion through the toothed wheel 112 tothe shaft d5,causing it to execute a complete revolution. ihS shown in Fig. 12, thisrevolution is transmitted by means of a cam disk to a vertical bar 115which is provided with a roll that projects into I which guided by itsupper moved positive p ano down to reciprocate the arm 116 of a boilcrank lever 116, 116 and bell crank lever 118, 118 by means of the Bythis means a sp ug pawl 121 hrou 'h an an le during each revol Lie maindriving snaft. in oscillating clockwise the pawl 121 travels along pheryof an en agement-prepc or a sector120, 1n the position of the g member120 shown c r .vl. 121 can only engage the toothed wncel 119 during thelast seoion a of its an ular movement and in shifts he lfCiYi'Cl strip 115 forward ace csponding to the space of 'lo printed line, the sad smallurning inevcnioitof the wheel 115) be' 1g transmit .1 ce. wheel 122 tothe feed roll 0 ed motion, cted during oscillation of .i to the mode ofoperation I set rth in tire abe I re table, forwhich the mais set whenthe swltches occupy their on the shaft -15, is'

the pawl 121,

positionsll and 7. The pawl 121 iscurved in such a way, that when it isoscillated backwards itslips over the teeth of the toothed l 119 and isreturned to its initial position shown in Fig. 12 without affecting the.eel 119.. v

in the mode of operation II the record strip must be fed forward adistance corresponding to'the spacing between six adjacent lines asindicated in the table. This feed motion is effected by throwing theswitch into its position U asshown in Fig. 3 to deflect the-rocker frame21 through an angle oz. This deflection the rocker frame is transmittedby means of the link 1-1 to the hell crank lever 16, -16" and by meansof the link 122 to the bell crank lever 12 1, 1241 whose striking pin121, shown in the upper right hand corner of l, supports a lever 125which a spring 126 tends to rotate clockwise. The bell crank lever 125pivoted on the shaft 123, also shown in 11, has an arm 125 with adownwardly extending prolongation 125 provided wi h uide pins 132, 133that project through slots 132?, 183 of a vertically reciprocable bar127. This bar 127 isnormally pulled its utmost upper position by aspring 131 whose one end is attached to the arm 12 of the bellcranklever 125 and whose other end is connected to a hump at the right handside of the bar 127. 1 The latter has also a left-wardly extending arm127 which carries a roll 127. By the aforedescribed clockwiseoscillation of the bell crank lever 125 the said roll 127 is broughtinto the h of the cam 130 fixed on the shaft which is revolved in theaforedescribedmanner during the rotation of the main drivingConsequently, when the shaft= 15 ros, the cam 130 presses the slottedbar 127 downwards while tensioning the spring 131,

the bar 127 being heldin its lowermost position, in which the roll 127 boccupies the pol on indicated by broken lines 1n Fig. 11,

' the greater part of the revolution of hookshaped end 127 of theslotted enters into engagement with the pin f a bell crank lever 128,128. There- 1 he downward movement of the slotted 127 now effectedby'the cam 130 causes bell crank lever 128, 128 to be deflected,deflection being transmitted through the 129 to theengagement-preventing member or sector 120, so that the latter is turnedcounter-clockwise to such an extent that the pawl 121 12) will commenceengaging v th the toothed wheel 119 early enough to it through an angleor, which is sulfit to effect a six-line feed motion, i. e. the stcontemplated feed motion of the record strip. hen the cam 130subsequently completes its revolution, the slotted bar 127 (Fig. 11) ispulled upwards bythe spring 1 31 and restored to the position indicatedby dotted lines in Fig. 11, whereby the sector 120 is restored to itsinitial position by means of themembers 128 and 192. In this restoringmotion the spring 131 is assisted by the s riri'g 129 that acts on thelink 129.

3 When the lever U is thrown back from its position U into itsinitialposition U the mechanism that connects it with the bell cranlgglever 125and 125 turns the latter counter-clockwise sofas to uncouple the slotc tthe second lever Z into its position Z is 127 from the bell crank lever128.

made of operation H1.In this mode of operation, which is obtained bythrowing the switches into positions U and Z", a six-line spacing on therecord strip is required as shown in the table. a As the rocker frame 21(Fig. 3 is deflected through the angle a both when t e switch U isthrown in the position U and in U all the parts in question are operatedin the same way as just described in the mode of operation II.

Mode of operation 1V.-In this mode of operation athree-line spacing ofthe record stri is to be effected according to the above tab e... As theswitch U is thrown into positiomU. to obtain this mode of operation, theslotted reciprocating'bar 127 is deflected by thethrowing of the switchU in the manner described above in reference to Fig. 12, so that thelower end of said bar is coupled to the arm 128. In order that thiscoupling of the bar; 127 to the arm 128 may not give rise to a six-linespacing on the record stri and to aecureinstead a three-line spacing, te throwuti ia'ed for effecting-the followin functions 7 By thethrowing'of the lever o the switch 2 into position Z (Fig. 3) thetoothed sector or disk 19, 19 is made to rotate the toothed sector lever18, 18 through a certain angle. The downwardly projecting arm 18 of thesaid lever then turns the arm 1'86 and the shaft 135 a short distance ina clockwise direction.

.. Fixed on the shaft 135 is a cam disk 134 (Fig.

11) upon which a in 125 of the bell crank lever 125 abuts. onsequentlythe clockwise deflection of the cam 134 results in a counterclockwisedeflection of the bell crank lever,

125 so that the bottom end of the slotted reciprocable bar 127 isuncoupled from the bell crank lever 128, and the movement of thefeedmotionregulatororengagemcnt-preventing sector 120, which wouldotherwise occur asa-result of the throwing of the switch U into itsosition U is thus prevented from taking. ace, and in its stead a smallmovement 0 the engagement preventing member 1.20flisefiected in thefollowing manner: The cam.134, when turned clockwise as described,raises a connecting bar 137 and by this means turns a earn 139 clockwiseround its pivot 138. The cain139 is adapted to turn theengagement-preventing member 129 through different angles. When itscontacting surface 139* is raised into engagement with the pin 128 ofthe bell crank lever 128 the latter lever, by means of the link 129,rotates the sector'120 counter-clockwise to such an extent that the pawl121 (Fig. 12) during its forward travelcommences engaging with the teethof the tooth wheel 119 early enough to turn the wheel 119 through anangle n which results in the record strip being advancedby a distancecorresponding to the space between three lines. Thus a three-linespacing, instead of a six-line spacing, is accomplished.

Mode of operation V.In this mode of operation a six-line spacing on therecord strip is required according to the above table. This spacing iseffected when the switch U is thrown into its position U as describedabove. The throwing of the second switch into the position Z has noeffect on the strip feed mechanism.

Mode of operation V] .--In this mode of operation a single-line spacingon the record strip is required. As the switch U is thrown into itsposition U a six-line spacing would take place, but the throwing of thesecond switch into its position Z has a similar effect to that describedin connection with the mode i of operation IV, to obtain which theswitch Z is thrown into the position Z. The difference consists only inthe fact that the smaller angle, through which the switch Z is moved ingoing into the position Z and required for the mode of operation VI,corresponds to a proportionally smaller deflection of the cam 139 (Fig.11) so that the contacting surface 139 fails to reach the pin 128 andthe sector 120 remains in its normal position shown in Fig. 11, in whichthe record strip is only shifted forward for the distance of a singleline, so that a single-line spacing is secured.

Mode of operation Vll.--In this mode of operation a six-line spacing ofthe record strip is required. This is secured when the switch U isthrown into its position U the backward rotation of the switch Z intoits position Z having no effect on the strip feed mechanism.

,Moa'e of operation V] I I .In this mode of operation a single-linespacing on the record strip is required. This is obtained when theswitch U remains in its initial position U, the throwing of the secondswitch into its position Z having no effect on the strip feed as alrcadystated.

I claim:

1. In a machine of the character described, the combination of a maindriving shaft, a member mounted for rotation and bearing on itsperiphery a plurality of distinguishing characters, a slidable membergeared to said rotatable member for rotating the latter during thesliding movement of the slidable member, releasable means normallyretaining said slidable member against sliding movement, means operableduring rotation of the driving shaft for releasing said retaining means,means automatically operative upon release of said retaining means toactuate said slidable member thereby to rotate said character-bearingmember to bring a predetermined character into printing position, andadjustable means for stopping the slidable member at one of a pluralityof positions.

2. In a machine of the character described, the combination of a maindriving shaft, a member mounted for rotation and bearing on itsperiphery a plurality of distinguishing characters, a spring operatedslidable member geared to said rotatable member for rotating the latterduring the sliding movement of the slidable member, a stop member carried by said slidable member, a rockable member having a portionnormally disposed in the path of movement of said stop thereby to retainsaid slidable member against movement, means operative during rotationof the driving shaft for rocking said retaining member out of the pathof said stop to permit movement of said slidable member under the actionof its spring thereby to actuate said character-bearing member to bringa predetermined character into printing position, and adjustable meansfor stopping the slidable member at one of a plurailty of posi tions.

3. In a machine of the character described, a rotatable member bearingon its periphcry a plurality of distinguishing characters, a slidablemember geared to said rotatable member for causing rotary motion of thelatter in response to sliding movement of the slidable member, a springsecured to said slidable member for moving the same in one direction, aplurality of stepped surfaces adjustable into the path of movement ofsaid slidable member thereby to stop the same at varying points, andmanually operable means for selecting and actuating said stop surfaces.

i. In a machine of the character described, the combination of a maindriving shaft, a member mounted for rotation and for bodily swingingmotion, said member bearing on its periphery a plurality ofdistinguishing characters, releasable means normally retaining saidmember against rotation, means operable during the rotation of saiddriving shaft for releasing said retaining means, means automaticallyoperative upon the release of said retaining means to rotate saidcharacter-bearing member thereby to bring a predetermined character intoprinting position, means for stopping the rotation of said member insaid position, means for bodily swinging said character-bearing member,and means for supporting a record strip in the path of saidcharacter-bearing member during its swinging motion thereby to receivethe imprint of the selected character.

5. In a machine of the character described, the combination of a maindriving shaft, a member mounted for rotation and for bodily swingingmotion, said member bearing on its periphery a plurality ofdistinguishing characters, releasable means normally retaining saidmember against rotation, means operable during the rotation of saiddriving shaft for releasing said retaining means, means automaticallyoperative upon the release of said retaining means to rotate saidcharacterbearing member thereby to bring a predetermined character intoprinting position, means for stopping the rotation of said member insaid position, a normally detensioned spring for swinging saidcharacter-bearing member, and means for selectively tensioning saidspring thereby to swing said characterbearing member to imprint theselected character.

6. In a machine of the character described having a main driving shaftand a fixed printing position, means for printing a distinguishing markand comprising a pivotally mounted frame, a type-bearing member mountedfor rotation in said frame, a second frame mounted for sliding movementand pivotally connected to said first frame, means for imparting slidingmovement to said second frame, gearing between said second frame andsaid rotatable member whereby sliding motion of the frame will rotatesaid member, means for Varying the length of said sliding motion therebyto rotate said member to select a predetermined character for printing,tension means for swinging said first frame toward the printingposition, means for retaining said first frame against swinging motionduring the selection of said character, and means automaticallyoperative to release said retaining means at a predetermined point inthe rotation of the driving shaft.

In testimony whereof I have signed my name to this specification.

ERNST KASSNER.

